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KITTITAS COUNTY <br /> DEPARTMENT OF PUBLIC WORKS <br /> PUBLIC WORKS—BOARD OF COUNTY COMMISSIONERS <br /> STUDY SESSION STAFF REPORT <br /> STUDY SESSION DATE: September 23,2024 <br /> TOPIC: Upper County Non-Holiday Weekend Speed <br /> Study Results <br /> ACTION REQUESTED: No Action required <br /> LEAD STAFF: <br /> Cameron Curtis <br /> RECOMMENDATION: <br /> No Action Required <br /> BRIEFING SUMMARY: <br /> • Public Works deployed traffic tubes on Westside Rd (MP 2.30), Mohar Rd(MP <br /> 0.37),Nelson Siding Rd (MP 0.81), and Bullfrog Rd(MP 0.05). <br /> • Traffic Tubes on Bullfrog Road were dislodged or tampered with over the <br /> Weekend potentially skewing data on Bullfrog Road. <br /> • The speed study was conducted from August 15, 2024 to August 23, 2024. <br /> • Average daily traffic (ADT)was found to be as follows: <br /> Highest Daily Highest Daily <br /> Volume Volume(Non- Typical Week Percent Increase <br /> Road Name (Holiday Week Holiday Week) ADT (Non-Holiday to Holiday) <br /> Westside Rd 4109 Sunda 2461 Sunda 1709 (Monday-Thursday) 66.96% <br /> Mohar Rd 1938 Sunda 780 Sunda 241 (Monday-Thursday) 148.46% <br /> Nelson Siding Rd 5527 Sunda 3689 Sunda ) 783 (Monday-Thursday) 49.82% <br /> Bullfrog Rd* 1 6047 Friday 1 5887 Friday 1 3687 1(Monday-Thursday 1 2.72% <br /> • 85% speed was found to be as follows: <br /> Holiday Week 85th Study Week 85th Typical Week 85th <br /> Percentile Speed Percentile Speed Percentile Speed <br /> Road Name (MPH) (MPH) (MPH) Posted S eed(MPH) <br /> Westside Rd 46.05 43.45 40.45 35 <br /> Mohar Rd 42.25 43.50 36.50 35 <br /> Nelson Siding Rd 45.80 48.60 41.10 35 <br /> Bullfrog Rd 50.50 43.85 51.50 35 <br />